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ClipboardCopy

Copy-to-clipboard control (write-only; no clipboard read).

Import from hedron import ClipboardCopy
Distribution hedron
Backend activity No
Normal render mode RenderMode.FRAGMENT

Live demo

Copies a provided string to the clipboard.

The preview is a local docs simulation (not a running Hedron server). Interactive demos show a “Simulated HTMX” trace when applicable.

Basic use

from hedron import ClipboardCopy
component = ClipboardCopy('secret-token')

Compose under Page for full documents, or return from a fragment route for HTMX swaps.

How it works

Phase 0.15 surface. Prefer native HTML semantics and ordinary HTTP actions.

This component's core behavior is server-rendered HTML and does not require a browser runtime. The preview is ordinary semantic HTML, so keyboard, form, link, and disclosure behavior comes from the platform.

Constructor and parameters

ClipboardCopy(text: 'str', *, label: 'str' = 'Copy', mark: 'str | None' = None, **kwargs: 'object') -> 'None'
Parameter Type Meaning
text str Plain text content.
label str Accessible label text shown to users. Default: 'Copy'.
mark str | None Optional stable test mark (data-hedron-mark). Default: None.

Composition and backend behavior

Keep ClipboardCopy at the smallest semantic boundary. Fragment routes should return only the replaced region and preserve stable target IDs across success, validation, empty, loading, and error responses.

ClipboardCopy participates in interaction markup. Pair it with an explicit @app.action POST (and CSRF) when the control mutates state.

Accessibility

Keyboard and screen-reader operable; no-JS fallback required where interactive.

Security

Escaping and SafeUrl / TrustedHtml are framework concerns; authorization and data exposure remain application code. Redact secrets before rendering.

Common mistakes

  • Do not treat client-only hints (geolocation, browser storage) as authorization.
  • Do not copy docs-preview JavaScript into an application server.

Testing

from hedron import RenderMode, render

result = render(component, mode=RenderMode.FRAGMENT)
assert result.html
assert not result.diagnostics

All component demos · Built-in API · Testing